refactor: Extract interaction handling logic into dedicated ComponentInteractionHandler, AutocompleteHandler, and CommandHandler classes.

src/events/interactionCreate.ts

@@ -1,68 +1,20 @@
-import { Events, MessageFlags } from "discord.js";
-import { AuroraClient } from "@/lib/BotClient";
-import { userService } from "@/modules/user/user.service";
-import { createErrorEmbed } from "@lib/embeds";
+import { Events } from "discord.js";
+import { ComponentInteractionHandler, AutocompleteHandler, CommandHandler } from "@/lib/handlers";
 import type { Event } from "@lib/types";
 
 const event: Event<Events.InteractionCreate> = {
     name: Events.InteractionCreate,
     execute: async (interaction) => {
-        // Handle Trade Interactions
         if (interaction.isButton() || interaction.isStringSelectMenu() || interaction.isModalSubmit()) {
-            const { interactionRoutes } = await import("@lib/interaction.routes");
-
-            for (const route of interactionRoutes) {
-                if (route.predicate(interaction)) {
-                    const module = await route.handler();
-                    const handlerMethod = module[route.method];
-                    if (typeof handlerMethod === 'function') {
-                        await handlerMethod(interaction);
-                        return;
-                    } else {
-                        console.error(`Handler method ${route.method} not found in module`);
-                    }
-                }
-            }
+            return ComponentInteractionHandler.handle(interaction);
         }
 
         if (interaction.isAutocomplete()) {
-            const command = AuroraClient.commands.get(interaction.commandName);
-            if (!command || !command.autocomplete) return;
-            try {
-                await command.autocomplete(interaction);
-            } catch (error) {
-                console.error(`Error handling autocomplete for ${interaction.commandName}:`, error);
-            }
-            return;
+            return AutocompleteHandler.handle(interaction);
         }
 
-        if (!interaction.isChatInputCommand()) return;
-
-        const command = AuroraClient.commands.get(interaction.commandName);
-
-        if (!command) {
-            console.error(`No command matching ${interaction.commandName} was found.`);
-            return;
-        }
-
-
-        // Ensure user exists in database
-        try {
-            await userService.getOrCreateUser(interaction.user.id, interaction.user.username);
-        } catch (error) {
-            console.error("Failed to ensure user exists:", error);
-        }
-
-        try {
-            await command.execute(interaction);
-        } catch (error) {
-            console.error(error);
-            const errorEmbed = createErrorEmbed('There was an error while executing this command!');
-            if (interaction.replied || interaction.deferred) {
-                await interaction.followUp({ embeds: [errorEmbed], flags: MessageFlags.Ephemeral });
-            } else {
-                await interaction.reply({ embeds: [errorEmbed], flags: MessageFlags.Ephemeral });
-            }
+        if (interaction.isChatInputCommand()) {
+            return CommandHandler.handle(interaction);
         }
     },
 };

src/lib/handlers/AutocompleteHandler.ts

@@ -0,0 +1,21 @@
+import { AutocompleteInteraction } from "discord.js";
+import { AuroraClient } from "@/lib/BotClient";
+
+/**
+ * Handles autocomplete interactions for slash commands
+ */
+export class AutocompleteHandler {
+    static async handle(interaction: AutocompleteInteraction): Promise<void> {
+        const command = AuroraClient.commands.get(interaction.commandName);
+
+        if (!command || !command.autocomplete) {
+            return;
+        }
+
+        try {
+            await command.autocomplete(interaction);
+        } catch (error) {
+            console.error(`Error handling autocomplete for ${interaction.commandName}:`, error);
+        }
+    }
+}

src/lib/handlers/CommandHandler.ts

@@ -0,0 +1,39 @@
+import { ChatInputCommandInteraction, MessageFlags } from "discord.js";
+import { AuroraClient } from "@/lib/BotClient";
+import { userService } from "@/modules/user/user.service";
+import { createErrorEmbed } from "@lib/embeds";
+
+/**
+ * Handles slash command execution
+ * Includes user validation and comprehensive error handling
+ */
+export class CommandHandler {
+    static async handle(interaction: ChatInputCommandInteraction): Promise<void> {
+        const command = AuroraClient.commands.get(interaction.commandName);
+
+        if (!command) {
+            console.error(`No command matching ${interaction.commandName} was found.`);
+            return;
+        }
+
+        // Ensure user exists in database
+        try {
+            await userService.getOrCreateUser(interaction.user.id, interaction.user.username);
+        } catch (error) {
+            console.error("Failed to ensure user exists:", error);
+        }
+
+        try {
+            await command.execute(interaction);
+        } catch (error) {
+            console.error(error);
+            const errorEmbed = createErrorEmbed('There was an error while executing this command!');
+
+            if (interaction.replied || interaction.deferred) {
+                await interaction.followUp({ embeds: [errorEmbed], flags: MessageFlags.Ephemeral });
+            } else {
+                await interaction.reply({ embeds: [errorEmbed], flags: MessageFlags.Ephemeral });
+            }
+        }
+    }
+}

src/lib/handlers/ComponentInteractionHandler.ts

@@ -0,0 +1,27 @@
+import { ButtonInteraction, StringSelectMenuInteraction, ModalSubmitInteraction } from "discord.js";
+
+type ComponentInteraction = ButtonInteraction | StringSelectMenuInteraction | ModalSubmitInteraction;
+
+/**
+ * Handles component interactions (buttons, select menus, modals)
+ * Routes to appropriate handlers based on customId patterns
+ */
+export class ComponentInteractionHandler {
+    static async handle(interaction: ComponentInteraction): Promise<void> {
+        const { interactionRoutes } = await import("@lib/interaction.routes");
+
+        for (const route of interactionRoutes) {
+            if (route.predicate(interaction)) {
+                const module = await route.handler();
+                const handlerMethod = module[route.method];
+
+                if (typeof handlerMethod === 'function') {
+                    await handlerMethod(interaction);
+                    return;
+                } else {
+                    console.error(`Handler method ${route.method} not found in module`);
+                }
+            }
+        }
+    }
+}

src/lib/handlers/index.ts

@@ -0,0 +1,3 @@
+export { ComponentInteractionHandler } from "./ComponentInteractionHandler";
+export { AutocompleteHandler } from "./AutocompleteHandler";
+export { CommandHandler } from "./CommandHandler";